Two unknown equation systems from the first degree can be solved with this. Just enter the constants.
x and y are variables and a, b and c are constants where:
a1x + b1y = c1
a2x + b2y = c2
To solve this kind of equations, enter the constants in this sample order, constant of x comes first, constant of y comes second and the result of the equation comes last. Otherwise, you may find wrong answers.
Hope this helps!